Display screen or portion thereof with icon



FIG. 1 is a front view of a first embodiment of a display screen or portion thereof with icon in accordance with our new design;

FIG. 2 is a front view of a second embodiment of a display screen or portion thereof with icon in accordance with our new design; and,

FIG. 3 is a front view of a third embodiment of a display screen or portion thereof with icon in accordance with our new design.

The broken lines illustrate the display screen or portion thereof and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with icon, as shown and described. 